BMW Key Cost - Alternatives to Heading to the Dealership BMW key fobs are costly to replace when they get damaged or lost. There are other options to go to the dealer to purchase a new key fob. Locksmiths charge much less for key replacements for cars than dealerships. See https://the-key-lab08801.ja-blog.com/30212319/bmw-key-programmer-isn-t-as-difficult-as-you-think